阅读说明：本技术 一种降低起毛面料掉毛率的方法和雾化抽气装置 (Method for reducing linting rate of fluffed fabric and atomizing and air-extracting device ) 是由 蔡映杰 张聪 朱文举 林经伟 张新斌 朱三童 高秀红 周橙 吴济宏 于 2021-09-26 设计创作，主要内容包括：本发明涉及纺织技术领域,具体涉及一种降低起毛面料掉毛率的方法和雾化抽气装置。该方法包括：将疏水溶剂雾化液滴沿起毛面料的基布层-绒毛层方向渗透至基布层内部且与基布层和绒毛层的接触面的距离为Hmm,接着将粘合剂溶液雾化液滴沿起毛面料的绒毛层-基布层方向渗透至基布层内部且与基布层和绒毛层的接触面的距离为Hmm,然后将起毛面料烘干。在本发明中,上述方法在包括箱体、第二抽气设备、第一雾化设备、第二雾化设备和第一抽气设备的雾化抽气装置中实施。本发明所述的方法通过雾化喷洒粘合剂溶液,增强裸露绒毛与面料基布和非裸露绒毛的结合力,从而降低绒毛掉毛率。(The invention relates to the technical field of textiles, in particular to a method for reducing the linting rate of a fluffed fabric and an atomizing and air-extracting device. The method comprises the following steps: and then, the atomized droplets of the adhesive solution penetrate into the base cloth layer along the direction of the fluff layer to the base cloth layer of the fluff fabric, and the distance between the atomized droplets of the adhesive solution and the contact surface of the base cloth layer and the fluff layer is Hmm, and then the fluff fabric is dried. In the invention, the method is implemented in an atomizing and air-extracting device comprising a box body, a second air-extracting device, a first atomizing device, a second atomizing device and a first air-extracting device. The method of the invention increases the binding force of the exposed fluff with the fabric base cloth and the non-exposed fluff by atomizing and spraying the adhesive solution, thereby reducing the fluff falling rate.)

1. The method for reducing the linting rate of the fluffed fabric is characterized in that the fluffed fabric comprises a base fabric layer (2) and a fluff layer (1); the fluff layer (1) is laminated on one side of the base fabric layer (2);

the method comprises the following steps: atomizing a hydrophobic solvent to obtain atomized droplets of the hydrophobic solvent, enabling the atomized droplets of the hydrophobic solvent to penetrate into the base cloth layer (2) along the direction of the base cloth layer (2) -the fluff layer (1) of the fluffed fabric, enabling the distance between the atomized droplets of the hydrophobic solvent and the contact surface of the base cloth layer (2) and the fluff layer (1) to be Hmm, then atomizing an adhesive solution to obtain atomized droplets of the adhesive solution, enabling the atomized droplets of the adhesive solution to penetrate into the base cloth layer (2) along the direction of the fluff layer (1) -the base cloth layer (2) of the fluffed fabric, enabling the distance between the atomized droplets of the adhesive solution and the contact surface of the base cloth layer (2) and the fluff layer (1) to be Hmm, and then drying the fluffed fabric;

wherein H is more than or equal to 0.08 and less than or equal to 0.2;

the concentration of the adhesive solution is 15-30 g/L.

2. The method of claim 1, wherein the fabric is a chemical fiber fabric, a natural fiber fabric, or a mixed fiber fabric of chemical fibers and natural fibers.

3. The method of claim 2, wherein the chemical fiber is a polyester, acrylic or nylon fiber.

4. The method of claim 2, wherein the natural fibers are cotton, hemp, wool, or silk fibers.

5. The method according to claim 1 or 2, wherein the fabric is a mixed fiber fabric of polyester fibers and cotton fibers.

6. The method of claim 1, wherein the hydrophobic solvent is at least one of cyclopentane, n-hexane, n-pentane, isopropyl ether, and methyl tert-butyl ether;

preferably, the hydrophobic solvent is methyl tert-butyl ether.

7. The method of claim 1 or 6, wherein the adhesive is at least one of a water-soluble adhesive, a hot-melt adhesive, a solvent-based adhesive, an emulsion-based adhesive, and a solvent-free liquid adhesive;

preferably, the binder is an aqueous polyurethane.

8. The method of claim 1, wherein the temperature of the drying is 60-100 ℃.

9. The method according to claim 1 or 8, wherein the drying time is 2-20 min.

10. Atomizing gas extraction device for carrying out the method according to any one of claims 1 to 9, characterized in that it comprises a tank (10), a second gas extraction means (7), a first atomizing means (6), a second atomizing means (5) and a first gas extraction means (4);

wherein a lower vent (8) is arranged at the bottom of the box body (10), and an upper vent (3) is arranged at the top of the box body (10);

the second air suction device (7) and the first atomization device (6) are movably arranged below the inner part of the box body (10), and the second atomization device (5) and the first air suction device (4) are movably arranged above the inner part of the box body (10).

Technical Field

The invention relates to the technical field of textiles, in particular to a method for reducing the linting rate of a fluffed fabric and an atomizing and air-extracting device.

Background

The process of raising fabric is to cover one side of the fabric with one layer of pile by using relevant equipment, such as raising machine, and mainly includes raising finishing method, shearing finishing method and artificial fur method. The fuzzing finish is a method for hooking fibers in fabric yarns and forming fuzz, the shearing finish is a method for cutting pile loops of the fabric to form short wool, and the artificial fur is a method for forming long wool on the fabric in the weaving process. One side of the base fabric of the fluffed fabric is covered by the fluff, so that the fluffed fabric has the advantages of thick, soft and plump hand feeling, good heat preservation performance, hidden weave, soft pattern and special aesthetic feeling.

No matter what kind of raising method is adopted, the surface of the fabric is covered with the fluff, and in raising treatment, part of yarns are grabbed and broken, so that the whole fiber is exposed on the surface. These exposed fibers (called exposed fluff) either adhere to the yarn surface or adsorb to the unexposed fluff. Even if the exposed fluff is sucked by the air exhaust equipment in the fluffing process, part of the exposed fluff is still attached to the fluff fabric, and the fluff textile also has a serious fluff falling phenomenon in the wearing or washing process, which is mainly reflected in that the exposed fluff on the surface falls off and is attached to the skin of the face and the hands, or the exposed fluff on the surface falls onto other clothes after the fluff fabric is washed. These pile fabrics are annoying to consumers because the falling down piles are fine and difficult to remove, and the piles, after sticking to the skin surface and drying, easily enter the nasal cavity with breathing, and irritate the nasal mucosa, causing various discomfort.

Disclosure of Invention

The invention aims to solve the problem that a large amount of fluff of the fluffed fabric still falls off after the fluff is sucked by air exhaust treatment in the prior art, and provides a method and a device for reducing the fluff falling rate of the fluffed fabric.

In order to achieve the above object, the present invention provides, in one aspect, a method for reducing the linting rate of a napped fabric comprising a base fabric layer and a pile layer; the pile is laminated on one side of the base cloth layer;

the method comprises the following steps: atomizing a hydrophobic solvent to obtain atomized droplets of the hydrophobic solvent, penetrating the atomized droplets of the hydrophobic solvent into the base cloth layer along the direction of the base cloth layer-fluff layer of the fluffed fabric, wherein the distance between the atomized droplets of the hydrophobic solvent and the contact surface of the base cloth layer and the fluff layer is Hmm, then atomizing an adhesive solution to obtain atomized droplets of the adhesive solution, penetrating the atomized droplets of the adhesive solution into the base cloth layer along the direction of the fluff layer-base cloth layer of the fluffed fabric, wherein the distance between the atomized droplets of the adhesive solution and the contact surface of the base cloth layer and the fluff layer is Hmm, and then drying the fluffed fabric;

wherein H is more than or equal to 0.08 and less than or equal to 0.2;

the concentration of the adhesive solution is 15-30 g/L.

Preferably, the fabric is a chemical fiber fabric, a natural fiber fabric or a mixed fiber fabric of chemical fibers and natural fibers.

Preferably, the chemical fiber is polyester fiber, acrylic fiber or nylon fiber.

Preferably, the natural fibers are cotton, hemp, wool or silk fibers.

Further preferably, the fabric is a mixed fiber fabric of polyester fibers and cotton fibers.

Preferably, the hydrophobic solvent is at least one of cyclopentane, n-hexane, n-pentane, isopropyl ether, and methyl tert-butyl ether.

Further preferably, the hydrophobic solvent is methyl tert-butyl ether.

Preferably, the adhesive is at least one of a water-soluble adhesive, a hot-melt adhesive, a solvent-based adhesive, an emulsion-based adhesive, and a solvent-free liquid adhesive.

Further preferably, the binder is an aqueous polyurethane.

Preferably, the temperature of the drying is 60-100 ℃.

Preferably, the drying time is 2-20 min.

The invention provides an atomization air exhaust device for implementing the method, which comprises a box body, a second air exhaust device, a first atomization device, a second atomization device and a first air exhaust device;

wherein, the bottom of the box body is provided with a lower vent, and the top of the box body is provided with an upper vent;

the second air extraction equipment and the first atomization equipment are movably arranged below the inner part of the box body, and the second atomization equipment and the first air extraction equipment are movably arranged above the inner part of the box body.

The method of the invention increases the binding force of the exposed fluff with the fabric base cloth and the non-exposed fluff by atomizing and spraying the adhesive solution, thereby reducing the fluff falling rate.

Drawings

FIG. 1 is a schematic representation of a pile fabric;

FIG. 2 is a schematic illustration of the penetration of atomized droplets of hydrophobic solvent in the scrim-fluff layer direction;

FIG. 3 is a schematic view of the penetration of atomized droplets of binder solution in the fluff layer-to-scrim layer direction;

figure 4 is a schematic view of an atomizing air extractor.

Description of the reference numerals

1 fluff layer 2 base cloth layer

3 upper vent 4 first air extractor

5 second atomization device 6 first atomization device

7 lower ventilation opening of second air suction device 8

9 rotating arm 10 box

Detailed Description

The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

The endpoints of the ranges and any values disclosed herein are not limited to the precise range or value, and such ranges or values should be understood to encompass values close to those ranges or values. For ranges of values, between the endpoints of each of the ranges and the individual points, and between the individual points may be combined with each other to give one or more new ranges of values, and these ranges of values should be considered as specifically disclosed herein.

It should be noted that if directional indications (such as up, down, left, right, front, and back …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments provided by the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the protection scope of the present invention.

The invention provides a method for reducing the linting rate of a fluffed fabric, wherein the fluffed fabric comprises a base fabric layer 2 and a fluff layer 1; the fluff layer 1 is laminated on one side of the base fabric layer 2;

the method comprises the following steps: atomizing a hydrophobic solvent to obtain atomized droplets of the hydrophobic solvent, allowing the atomized droplets of the hydrophobic solvent to penetrate into the base fabric layer 2 along the direction from the base fabric layer 2 to the fluff layer 1 of the fluffed fabric and to reach the contact surface of the base fabric layer 2 and the fluff layer 1 at a distance Hmm, wherein the penetration schematic diagram is shown in figure 2, then atomizing an adhesive solution to obtain atomized droplets of the adhesive solution, allowing the atomized droplets of the adhesive solution to penetrate into the base fabric layer 2 along the direction from the fluff layer 1 to the base fabric layer 2 of the fluffed fabric and to reach the contact surface of the base fabric layer 2 and the fluff layer 1 at a distance Hmm, wherein the penetration schematic diagram is shown in figure 3, and then drying the fluffed fabric;

wherein H is more than or equal to 0.08 and less than or equal to 0.2;

the concentration of the adhesive solution is 15-30 g/L.

In the present invention, a schematic view of the raised fabric is shown in fig. 1.

In particular instances, the H can be 0.08, 0.09, 0.1, 0.11, 0.12, 0.13, 0.14, 0.15, 0.16, 0.17, 0.18, 0.19, or 0.2 in size.

In the invention, too much adhesive solution is adsorbed on the fluffy fabric, so that the hand feeling of the fabric is influenced; and too little adsorption, the effect of reducing the hair loss rate is not ideal. In order to better control the adsorption amount of the adhesive solution on the fabric, the penetration depth of the hydrophobic solvent is controlled, and then the adhesive solution is adsorbed. The fibers adsorbing the hydrophobic solvent prevent the penetration of the binder solution, thereby controlling the penetration depth and the adsorption amount of the binder solution.

In the invention, the fabric is a chemical fiber fabric, a natural fiber fabric or a mixed fiber fabric of chemical fibers and natural fibers.

In the invention, the chemical fiber is terylene, acrylic fiber or chinlon fiber.

In the present invention, the natural fiber is cotton, hemp, wool or silk fiber.

Preferably, the fabric is a mixed fiber fabric of polyester fibers and cotton fibers.

In the present invention, the fluffed fabric may be a fluffed knitted fabric, a fluffed woven fabric, a fluffed yarn fabric, or the like.

In the present invention, the hydrophobic solvent is at least one of cyclopentane, n-hexane, n-pentane, isopropyl ether, and methyl tert-butyl ether. Preferably, the hydrophobic solvent is methyl tert-butyl ether.

In the present invention, the adhesive is at least one of a water-soluble adhesive, a hot-melt adhesive, a solvent-based adhesive, an emulsion-based adhesive, and a solvent-free liquid adhesive. Preferably, the binder is an aqueous polyurethane.

In particular embodiments, the concentration of the binder solution may be 15g/L, 16g/L, 17g/L, 18g/L, 19g/L, 20g/L, 21g/L, 22g/L, 23g/L, 24g/L, 25g/L, 26g/L, 27g/L, 28g/L, 29g/L, or 30 g/L.

In the present invention, the penetration in the direction of the base fabric layer 2 to the pile layer 1 of the pile fabric means penetration of atomized droplets of the hydrophobic solvent from the non-pile surface of the base fabric layer 2 into the base fabric layer 2, as shown in fig. 2.

In the present invention, the penetration in the direction from the pile layer 1 to the base fabric layer 2 of the raised fabric means that atomized droplets of the binder solution are penetrated from the pile layer 1 side, pass through the pile layer 1, and then penetrate into the base fabric layer 2, as shown in fig. 3.

In the invention, the drying temperature is 60-100 ℃. Specifically, the drying temperature may be 60 ℃, 63 ℃, 65 ℃, 67 ℃, 70 ℃, 73 ℃, 75 ℃, 78 ℃, 80 ℃, 83 ℃, 85 ℃, 87 ℃, 90 ℃, 93 ℃, 95 ℃ or 100 ℃.

In the invention, the drying time is 2-20 min. Specifically, the drying time may be 2min, 3min, 4min, 5min, 6min, 7min, 8min, 9min, 10min, 11min, 12min, 13min, 14min, 15min, 16min, 17min, 18min, 19min or 20 min.

The second aspect of the invention provides an atomizing air-extracting device for implementing the method, which comprises a box body 10, a second air-extracting device 7, a first atomizing device 6, a second atomizing device 5 and a first air-extracting device 4;

wherein, the bottom of the box body 10 is provided with a lower vent 8, and the top of the box body 10 is provided with an upper vent 3;

the second air pumping device 7 and the first atomizing device 6 are movably arranged below the inner part of the box body 10, and the second atomizing device 5 and the first air pumping device 4 are movably arranged above the inner part of the box body 10.

A schematic of the atomizing air extractor of the present invention is shown in figure 4.

In the apparatus according to the invention, the first atomizing means 6 is adapted to atomize the hydrophobic solvent into atomized droplets of hydrophobic solvent. There is no particular requirement for the choice of the first atomizing device 6, and it is sufficient to atomize the hydrophobic solvent into atomized droplets of the hydrophobic solvent, which may be an atomizer conventionally used in the art.

Preferably, the first atomizing device 6 is an ultrasonic atomizer or a pressure air atomizer. In particular, the first atomization device 6 may be an ultrasonic atomizer.

In the device of the invention, the first air extraction device 4 is used for extracting air to form uniform flowing air in the box 10, so that atomized droplets of the hydrophobic solvent generated by the first atomization device 6 are directionally and uniformly permeated into the base fabric layer 2 along the direction of the base fabric layer 2-the fluff layer 1 of the fluffy fabric, and meanwhile, the air extraction can enable the fluff of the fluff layer 1 of the fluffy fabric to stand upright, which is beneficial for the subsequent atomized droplets of the adhesive solution to be attached to the fluff, so that the adhesion is carried out at the joint of the exposed fluff and the unexposed fluff, and the adhesion is not carried out between the unexposed fluff and the contact surface of the unexposed fluff and the base fabric layer 2 and the fluff layer 1, thereby avoiding the influence on the hand feeling of the fluffy fabric.

In the present invention, there is no particular requirement for the choice of the first suction device 4, which may be a suction device conventionally used in the art.

Preferably, the first air extraction device 4 is a fan exhaust fan or an air extraction pump. In particular, the first air extraction device 4 may be a fan exhaust.

In the present invention, said second atomizing means 5 is used for atomizing the binder solution into atomized droplets of the binder solution. There is no particular requirement for the choice of the second atomizing means 5, as long as the binder solution is atomized into binder solution atomized droplets, which may be atomizers conventionally used in the art.

Preferably, the second atomizing device 5 is an ultrasonic atomizer or a pressure air atomizer. In particular, the second atomization device 5 may be an ultrasonic atomizer.

In the present invention, the second air exhausting device 7 is used for exhausting air to form uniform flowing air in the box 10, so that the atomized droplets of the adhesive solution generated by the second atomizing device 7 are uniformly and directionally penetrated into the base fabric layer 2 along the direction from the fluff layer 1 to the base fabric layer 2 of the fluff fabric.

In the present invention, there is no particular requirement for the choice of the second suction device 7, which can be a suction device conventionally used in the art.

Preferably, the second air extraction device 7 is a fan exhaust fan or an air extraction pump. In particular, the second air extraction device 7 may be a fan exhaust.

In the device of the present invention, the second pumping device 7, the first atomizing device 6, the second atomizing device 5 and the first pumping device 4 are all connected with the inner wall of the box 10 through a rotating arm 9.

In the present invention, the case 10 is provided with the upper and lower vents 3 and 8 so that uniform flowing air can be formed in the case when air is drawn.

In one embodiment of the present invention, a fluff layer 1 of the fluff fabric is placed in the box 10, a base fabric layer 2 is placed downwards, the second air-extracting device 7 and the first atomizing device 6 are placed under the fluff fabric, the second atomizing device 5 and the first air-extracting device 4 are placed above the fluff fabric, then the first atomizing device 6 is used to atomize the hydrophobic solvent into atomized droplets of the hydrophobic solvent, then the first air-extracting device 4 is used to extract air to lift the fluff layer 1 of the fluff fabric, and the atomized droplets of the hydrophobic solvent are controlled to penetrate into the base fabric layer 2 uniformly and directionally along the direction of the base fabric layer 2-the fluff layer 1 of the fluff fabric and have a distance of Hmm from the contact surface of the base fabric layer 2 and the fluff layer 1, as shown in FIG. 2, stopping atomizing and air exhausting, moving the first atomizing device 6 and the first air exhausting device 4 away by using the rotating arm 9, atomizing the adhesive solution into adhesive solution atomized droplets by using the second atomizing device 5, performing air exhausting by using the second air exhausting device 7, controlling the adhesive solution atomized droplets to uniformly penetrate into the interior of the base fabric layer 2 along the direction from the fluff layer 1 to the base fabric layer 2 of the fluff fabric, controlling the distance between the adhesive solution atomized droplets and the contact surface between the base fabric layer 2 and the fluff layer 1 to be Hmm, stopping atomizing and air exhausting, and taking out the fluff fabric for drying, wherein the penetration schematic diagram is shown in fig. 3.

In the invention, the air suction can be started after the atomization is started, then the atomization is stopped, and then the air suction is stopped; or atomizing after air exhaust is started, stopping air exhaust and then stopping atomizing; atomization and air exhaust can also be started simultaneously, and the atomization and the air exhaust are stopped simultaneously. Namely, the sequence of starting atomization and starting air extraction each time is not required, and the sequence of stopping atomization and stopping air extraction is also not required.

In a preferred embodiment, when the air exhaust is started after the atomization is started, the interval time between the atomization start and the air exhaust start is less than or equal to 1 s; when the atomization is stopped after the air exhaust is stopped, the interval time between the atomization stop and the air exhaust stop is less than or equal to 1 s.

In the present invention, the distance between the nozzle of the first atomizing means 6 and the raised fabric is > 20 cm. Preferably, the distance between the nozzle of the first atomizing device 6 and the fluffed fabric is 50-100 cm. In particular, the distance of the nozzle of the first atomizing device 6 from the raised fabric may be 50cm, 55cm, 60cm, 65cm, 70cm, 75cm, 80cm, 85cm, 90cm, 95cm or 100 cm.

In the present invention, the distance between the nozzle of the second atomizing means 5 and the fluffed fabric is > 20 cm. Preferably, the distance between the nozzle of the second atomizing device 5 and the fluffed fabric is 50-100 cm. In particular, the distance of the nozzle of the second atomizing device 5 from the raised fabric may be 50cm, 55cm, 60cm, 65cm, 70cm, 75cm, 80cm, 85cm, 90cm, 95cm or 100 cm.

In the invention, the distance between the air exhaust opening of the first air exhaust device 4 and the fluffed fabric is 45-55 cm. Specifically, the distance between the suction opening of the first suction apparatus 4 and the raised fabric may be 45cm, 46cm, 47cm, 48cm, 49cm, 50cm, 51cm, 52cm, 53cm, 54cm or 55 cm.

In the invention, the distance between the air exhaust opening of the second air exhaust device 7 and the fluffed fabric is 45-55 cm. Specifically, the distance between the suction opening of the second suction device 7 and the raised fabric may be 45cm, 46cm, 47cm, 48cm, 49cm, 50cm, 51cm, 52cm, 53cm, 54cm or 55 cm.

In the present invention, the atomization speed of the first atomization device 6 is 200-500 mL/min. Specifically, the atomization rate of the first atomization device 6 may be 200mL/min, 250mL/min, 300mL/min, 350mL/min, 400mL/min, 450mL/min, or 500 mL/min.

In the present invention, the atomization speed of the second atomization device 5 is 200-500 mL/min. Specifically, the atomization rate of the second atomizing device 5 may be 200mL/min, 250mL/min, 300mL/min, 350mL/min, 400mL/min, 450mL/min, or 500 mL/min.

In the present invention, the air exhaust flow V1 of the first air exhaust device 4 is 1500-³H is used as the reference value. In particular, the bleed air flow V1 of the first bleed air device 4 may be 1500m³/h、1600m³/h、1700m³/h、1800m³/h、1900m³/h、2000m³/h、2100m³/h、2200m³/h、2300m³/h、2400m³H or 2500m³/h。

In the present invention, the air exhaust flow V2 of the second air exhaust device 7 is 1000-³H is used as the reference value. In particular, the bleed air flow V2 of the second bleed air device 7 may be 1000m³/h、1100m³/h、1200m³/h、1300m³/h、1400m³/h、1500m³/h、1600m³/h、1700m³/h、1800m³/h、1900m³H or 2000m³/h。

In the present invention, V2 < V1.

In a preferred embodiment, in the process of penetrating the atomized droplets of the hydrophobic solvent into the inside of the base fabric layer 2 along the direction of the base fabric layer 2-pile layer 1 of the raised fabric and at a distance Hmm from the contact surface of the base fabric layer 2 and the pile layer 1, the time from the contact with the raised fabric to the penetration into the specified position inside the base fabric layer 2 (at a distance Hmm from the contact surface of the base fabric layer 2 and the pile layer 1) is 8 to 20min by air suction.

In a preferred embodiment, in the process of penetrating the atomized droplets of the binder solution into the inside of the base fabric layer 2 in the direction from the pile layer 1 to the base fabric layer 2 of the pile fabric and at a distance Hmm from the contact surface between the base fabric layer 2 and the pile layer 1, the time from the contact of the atomized droplets of the binder solution with the pile fabric to the penetration into the specified position inside the base fabric layer 2 (at a distance Hmm from the contact surface between the base fabric layer 2 and the pile layer 1) is 3 to 6min by air suction.

In the present invention, the penetration distance of the hydrophobic solvent to the binder solution can be observed by a microscope.

According to the method, the binding force of the exposed fluff with the fabric base cloth and the non-exposed fluff is enhanced by atomizing and spraying the adhesive solution, so that the exposed fluff is bonded with the non-exposed fluff and the fabric base cloth, the problem that the fluff falls off in the process of taking the fluffy fabric can be effectively solved, the fluff falling rate is reduced, and the hand feeling of the fluffy fabric is not influenced. Meanwhile, the dried and removed low-boiling-point solvent is easy to recover, and the water consumption in the whole process is very small. In addition, due to the adoption of an atomization mode, the hydrophobic solvent and the adhesive solution can be uniformly and accurately adsorbed at corresponding positions, the utilization rate is high, and the method is a clean production process.

The present invention will be described in detail below by way of examples. The scope of the invention is not limited thereto.

The following examples and comparative examples and blank groups all used the same raising fabric (a mixed fiber fabric of polyester fibers and cotton fibers, which is blended and woven by 60 wt% of cotton fibers and 40 wt% of polyester fibers), including a base fabric layer 2 and a pile layer 1; the fluff layer 1 is laminated on one side of the base fabric layer 2, as shown in fig. 1;

the following examples and comparative examples are all carried out in an atomizing air-extracting apparatus comprising a tank 10, a second air-extracting device 7, a first atomizing device 6, a second atomizing device 5 and a first air-extracting device 4, as shown in fig. 4;

wherein, the bottom of the box body 10 is provided with a lower vent 8, and the top of the box body 10 is provided with an upper vent 3;

the second air pumping device 7 and the first atomizing device 6 are movably arranged below the inner part of the box body 10, and the second atomizing device 5 and the first air pumping device 4 are movably arranged above the inner part of the box body 10;

the second air pumping device 7, the first atomizing device 6, the second atomizing device 5 and the first air pumping device 4 are all connected with the inner wall of the box body 10 through a rotating arm 9.

When the fluffed fabric is atomized and exhausted by using the device: placing the fluffed fabric in the box 10, wherein the fluff layer 1 of the fluffed fabric faces upwards, the base fabric layer 2 faces downwards, the second air suction device 7 and the first atomizing device 6 are positioned below the fluffed fabric, and the second atomizing device 5 and the first air suction device 4 are positioned above the fluffed fabric; the distance between the nozzle of the first atomizing device 6 and the fluffed fabric is 60cm, the distance between the nozzle of the second atomizing device 5 and the fluffed fabric is 60cm, the distance between the air exhaust opening of the first air exhaust device 4 and the fluffed fabric is 50cm, and the distance between the air exhaust opening of the second air exhaust device 7 and the fluffed fabric is 50cm by controlling the rotating arm 9.

The ultrasonic atomizer used in the following examples and comparative examples was blue lounge BE-J001, the manufacturer was boner electric appliance ltd, zhongshan, the fan exhaust fan used was AKHL-4A, the manufacturer was texas aike air conditioning equipment ltd, the size of the fabric used in the examples, comparative examples and blank groups was 21cm × 30cm, and the thickness was 1 mm.

Example 1

The methyl tert-butyl ether is atomized into methyl tert-butyl ether atomized droplets by using a first atomizing device 6 (an ultrasonic atomizer) with the atomizing speed of 400mL/min, and then air is extracted by using a first air extraction device 4 (a fan exhaust fan) with the air extraction flow V1 of 2000m³H, lifting and erecting the fluff of the fluff layer 1 of the fluffed fabric (the mixed fiber fabric of polyester fibers and cotton fibers), controlling the distance between the atomized droplets of methyl tert-butyl ether and the contact surface of the base fabric layer 2 and the fluff layer 1 to be Hmm, enabling the atomized droplets of methyl tert-butyl ether to penetrate into the base fabric layer 2 uniformly and directionally along the direction from the base fabric layer 2 to the fluff layer 1 of the fluffed fabric, stopping atomization and air exhaust when the atomized droplets of methyl tert-butyl ether penetrate into a specified position in the base fabric layer 2 (the distance between the atomized droplets and the contact surface of the base fabric layer 2 and the fluff layer 1 is Hmm) as shown in a schematic permeation diagram of figure 2, moving a first atomization device 6 (an ultrasonic atomizer) and a first air exhaust device 4 (a fan exhaust fan) by using a rotating arm 9, and then atomizing an aqueous polyurethane solution with the concentration of 20g/L into atomized droplets by using a second atomization device 5 (an ultrasonic atomizer), fog mistThe chemical velocity is 400mL/min, the second air extraction equipment 7 (a fan exhaust fan) is used for extracting air, and the air extraction flow V2 is 1500m³H, enabling atomized droplets of the aqueous polyurethane solution to uniformly penetrate into the base fabric layer 2 along the direction from the fluff layer 1 to the base fabric layer 2 of the fluff fabric in an oriented mode, wherein the distance between the atomized droplets of the aqueous polyurethane solution and the contact surface of the base fabric layer 2 and the fluff layer 1 is Hmm, the time from the contact of the atomized droplets of the aqueous polyurethane solution with the fluff fabric to the penetration of the atomized droplets of the aqueous polyurethane solution to a specified position in the base fabric layer 2 (the distance between the atomized droplets of the aqueous polyurethane solution and the contact surface of the base fabric layer 2 and the fluff layer 1 is Hmm) is 4min, the penetration schematic diagram is shown in figure 3, the atomization and the air exhaust are stopped, the fluff fabric is taken out and dried, the drying temperature is 80 ℃, and the drying time is 11min, and the treated fluff fabric A1 is obtained;

wherein H is 0.1.

Example 2

The methyl tert-butyl ether is atomized into methyl tert-butyl ether atomized droplets by using a first atomizing device 6 (an ultrasonic atomizer) at the atomizing speed of 300mL/min, and then air is extracted by using a first air extraction device 4 (a fan exhaust fan), wherein the air extraction flow V1 is 1500m³H, lifting and erecting the fluff of the fluff layer 1 of the fluffed fabric (the mixed fiber fabric of polyester fibers and cotton fibers), controlling the distance between the atomized droplets of methyl tert-butyl ether and the contact surface of the base fabric layer 2 and the fluff layer 1 to be Hmm, enabling the atomized droplets of methyl tert-butyl ether to penetrate into the base fabric layer 2 uniformly and directionally along the direction from the base fabric layer 2 to the fluff layer 1 of the fluffed fabric, stopping atomization and air exhaust when the atomized droplets of methyl tert-butyl ether penetrate into a specified position in the base fabric layer 2 (the distance between the atomized droplets and the contact surface of the base fabric layer 2 and the fluff layer 1 is Hmm) as shown in a schematic permeation diagram of figure 2, moving a first atomization device 6 (an ultrasonic atomizer) and a first air exhaust device 4 (a fan exhaust fan) by using a rotating arm 9, and then atomizing an aqueous polyurethane solution with the concentration of 30g/L into atomized droplets by using a second atomization device 5 (an ultrasonic atomizer), the atomization speed is 300mL/min, the second air extraction device 7 (a fan exhaust fan) is used for extracting air, and the air extraction flow V2 is 1000m³H, uniformly penetrating the atomized liquid drops of the aqueous polyurethane solution into the base fabric layer 2 along the direction from the fluff layer 1 to the base fabric layer 2 of the fluff fabric and into the contact surface between the base fabric layer 2 and the fluff layer 1The distance is Hmm, the time from the contact of the atomized liquid drops of the aqueous polyurethane solution with the fluffed fabric to the penetration to the designated position in the base fabric layer 2 (the distance between the atomized liquid drops and the contact surface of the base fabric layer 2 and the fluff layer 1 is Hmm) is 5min, the penetration schematic diagram is shown in figure 3, the atomization and the air exhaust are stopped, the fluffed fabric is taken out and dried, the drying temperature is 60 ℃, and the drying time is 20min, so that the treated fluffed fabric A2 is obtained;

wherein H is 0.15.

Example 3

The methyl tert-butyl ether is atomized into methyl tert-butyl ether atomized droplets by using a first atomizing device 6 (an ultrasonic atomizer) at an atomizing speed of 500mL/min, and then air is extracted by using a first air extraction device 4 (a fan exhaust fan), wherein the air extraction flow V1 is 2500m³H, lifting and erecting the fluff of the fluff layer 1 of the fluffed fabric (the mixed fiber fabric of polyester fibers and cotton fibers), controlling the distance between the atomized droplets of methyl tert-butyl ether and the contact surface of the base fabric layer 2 and the fluff layer 1 to be Hmm, enabling the atomized droplets of methyl tert-butyl ether to penetrate into the base fabric layer 2 uniformly and directionally along the direction from the base fabric layer 2 to the fluff layer 1 of the fluffed fabric, stopping atomization and air exhaust when the atomized droplets of methyl tert-butyl ether penetrate into a specified position in the base fabric layer 2 (the distance between the atomized droplets and the contact surface of the base fabric layer 2 and the fluff layer 1 is Hmm), moving a first atomization device 6 (an ultrasonic atomizer) and a first air exhaust device 4 (a fan exhaust fan) by using a rotating arm 9, then atomizing an aqueous polyurethane solution with the concentration of 15g/L into atomized droplets by using a second atomization device 5 (an ultrasonic atomizer), the atomization speed is 500mL/min, the second air extraction equipment 7 (a fan exhaust fan) is used for extracting air, and the air extraction flow V2 is 2000m³H, enabling atomized liquid drops of the aqueous polyurethane solution to uniformly penetrate into the base fabric layer 2 along the direction from the fluff layer 1 to the base fabric layer 2 of the fluff fabric in an oriented mode, enabling the distance between the atomized liquid drops and the contact surface of the base fabric layer 2 and the fluff layer 1 to be Hmm, enabling the time from the contact of the atomized liquid drops of the aqueous polyurethane solution with the fluff fabric to the penetration to a specified position in the base fabric layer 2 (the distance between the atomized liquid drops and the contact surface of the base fabric layer 2 and the fluff layer 1 is Hmm) to be 3min, enabling the permeation schematic diagram to be shown in figure 3, stopping atomization and air suction, taking out and drying the fluff fabric, and enabling the drying temperature to be equal toDrying at 65 ℃ for 5min to obtain treated fluffed fabric A3;

wherein H is 0.08.

Example 4

The methyl tert-butyl ether is atomized into methyl tert-butyl ether atomized droplets by using a first atomizing device 6 (an ultrasonic atomizer) at an atomizing speed of 200mL/min, and then air is extracted by using a first air extraction device 4 (a fan exhaust fan) at an air extraction flow V1 of 2000m³H, lifting and erecting the fluff of the fluff layer 1 of the fluffed fabric (the mixed fiber fabric of polyester fibers and cotton fibers), controlling the distance between the atomized droplets of methyl tert-butyl ether and the contact surface of the base fabric layer 2 and the fluff layer 1 to be Hmm, enabling the atomized droplets of methyl tert-butyl ether to penetrate into the base fabric layer 2 uniformly and directionally along the direction from the base fabric layer 2 to the fluff layer 1 of the fluffed fabric, stopping atomization and air exhaust when the atomized droplets of methyl tert-butyl ether penetrate into a specified position in the base fabric layer 2 (the distance between the atomized droplets and the contact surface of the base fabric layer 2 and the fluff layer 1 is Hmm) as shown in a schematic permeation diagram of figure 2, moving a first atomization device 6 (an ultrasonic atomizer) and a first air exhaust device 4 (a fan exhaust fan) by using a rotating arm 9, and then atomizing an aqueous polyurethane solution with the concentration of 20g/L into atomized droplets by using a second atomization device 5 (an ultrasonic atomizer), the atomization speed is 200mL/min, the second air extraction device 7 (fan exhaust fan) is used for extracting air, and the air extraction flow V2 is 1500m³H, enabling atomized droplets of the aqueous polyurethane solution to uniformly penetrate into the base fabric layer 2 along the direction from the fluff layer 1 to the base fabric layer 2 of the fluff fabric in an oriented mode, wherein the distance between the atomized droplets of the aqueous polyurethane solution and the contact surface of the base fabric layer 2 and the fluff layer 1 is Hmm, the time from the contact of the atomized droplets of the aqueous polyurethane solution with the fluff fabric to the penetration of the atomized droplets of the aqueous polyurethane solution to a specified position in the base fabric layer 2 (the distance between the atomized droplets of the aqueous polyurethane solution and the contact surface of the base fabric layer 2 and the fluff layer 1 is Hmm) is 6min, the penetration schematic diagram is shown in figure 3, the atomization and the air exhaust are stopped, the fluff fabric is taken out and dried, the drying temperature is 100 ℃, and the drying time is 2min, and the treated fluff fabric A4 is obtained;

wherein H is 0.2.

Comparative example 1

The procedure of example 3 was followed, except that the time from the contact of the atomized droplets of methyl t-butyl ether to the penetration of the atomized droplets of methyl t-butyl ether into the prescribed position inside the base fabric layer 2 (the distance from the contact surface of the base fabric layer 2 to the nap layer 1 was Hmm) was 25min, the time from the contact of the atomized droplets of aqueous polyurethane solution to the penetration of the atomized droplets of aqueous polyurethane solution into the prescribed position inside the base fabric layer 2 (the distance from the contact surface of the base fabric layer 2 to the nap layer 1 was Hmm) was 2min, and H was 0.06, to obtain a treated fluffed fabric D1.

Comparative example 2

The procedure of example 4 was followed, except that the time from the contact of the atomized droplets of methyl t-butyl ether to the penetration of the atomized droplets of methyl t-butyl ether into the prescribed position inside the base fabric layer 2 (the distance from the contact surface of the base fabric layer 2 to the nap layer 1 was Hmm) was 7min, the time from the contact of the atomized droplets of aqueous polyurethane solution to the penetration of the atomized droplets of aqueous polyurethane solution into the prescribed position inside the base fabric layer 2 (the distance from the contact surface of the base fabric layer 2 to the nap layer 1 was Hmm) was 8min, and H was 0.25, to obtain a treated fluffed fabric D2.

Comparative example 3

The treatment was carried out in the same manner as in example 3, except that the concentration of the aqueous polyurethane solution was 10g/L, whereby a treated raised fabric D3 was obtained.

Comparative example 4

The treatment was carried out in the same manner as in example 2, except that the concentration of the aqueous polyurethane solution was 40g/L, whereby a treated raised fabric D4 was obtained.

Test example 1

In order to better explain the effects of the present invention, a blank group is additionally provided.

Blank group

A blank pile fabric (a mixed fiber fabric of polyester fibers and cotton fibers) D5 without any treatment.

Respectively detecting the hair falling rate and the hand feeling of A1-A4, D1-D4 and D5;

the hair loss rate is tested according to FZ/T72010-2010.

The hand feeling test method comprises the following steps:

cutting the fabric by a circular cutting machine for 100cm²Weighing and measuring the thickness of the round fabric, and placing the round fabric in a fabric handOn a feeling tester (WHM) test platform, after the gram weight and the thickness of the fabric are input into a test system, the comprehensive hand feeling performance is tested and is divided into 10 grades, and the larger the grade is, the better the comprehensive hand feeling performance is. Meanwhile, the hand feeling of all fabrics is qualitatively judged according to experience by 20 researchers in a hand-grasping mode, the original fabric (D5) is used as a reference standard, the change of the hand feeling of the processed fabrics relative to D5 is judged, and the judgment standard is as follows:

all 18 researchers above consider that the hand feeling of the treated fabric is the same as or similar to that of D5, and then the hand feeling of the fabric is not changed;

more than 18 researchers consider that the hand feeling of the processed fabric is different from that of D5, and then consider that the hand feeling of the fabric is changed;

and when the judgment results of the researchers not meeting the requirement of more than 18 are consistent, judging again until the judgment results of the researchers meeting the requirement of more than 18 are consistent.

The results are shown in Table 1

TABLE 1

The results in table 1 show that the method of the invention can well reduce the linting rate of the fluffed fabric on the premise of not affecting the hand feeling of the fluffed fabric.

The preferred embodiments of the present invention have been described above in detail, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, many simple modifications can be made to the technical solution of the invention, including combinations of various technical features in any other suitable way, and these simple modifications and combinations should also be regarded as the disclosure of the invention, and all fall within the scope of the invention.